[R] about the subscript assignment porblem

[kh zu]

Hi, Dear,

  I have a problem for the new version 2.0 of R
When I put this code in it give me the error:

uis$ivhx3[uis$ivhx>0] <- 1*(uis$ivhx==3)
Error: NAs are not allowed in subscripted assignments

but this would happen in version 1.91
there are missing data in the data set and it is
represented as NA
the data set can be find on line 
at the ucla web
actually this is a example from its web site

the c code is at
https://svn.r-project.org/R/trunk/src/main/subassign.c

:
if(length(y) > 1)
	for(i = 0; i < n; i++)
	    if(INTEGER(indx)[i] == NA_INTEGER)
		error("NAs are not allowed in subscripted
assignments");
 So maybe we need get rid of this conditional code.

  

  Best Wishes
  Ku